Headphone



FIG. 1 is a perspective view of another embodiment of a headphone for the right ear of a user in accordance with the present invention;

FIG. 2 is a top view thereof;

FIG. 3 is a bottom view thereof;

FIG. 4 is a right side view thereof;

FIG. 5 is a right side view thereof;

FIG. 6 is a rear view thereof; and,

FIG. 7 is a front view thereof.

The broken lines illustrate portions of the headphone that form no part of the claimed design. 

CLAIM The ornamental design for headphone, as shown and described. 